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9028541 = 29311329
BaseRepresentation
bin100010011100…
…001110111101
3121222200211102
4202130032331
54302403131
6521302445
7136512164
oct42341675
917880742
109028541
115107305
123034a25
131b41642
1412b03db
15bd51cb
hex89c3bd

9028541 has 4 divisors (see below), whose sum is σ = 9339900. Its totient is φ = 8717184.

The previous prime is 9028531. The next prime is 9028543. The reversal of 9028541 is 1458209.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6400900 + 2627641 = 2530^2 + 1621^2 .

It is a cyclic number.

It is not a de Polignac number, because 9028541 - 210 = 9027517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 311329 = 9028541 / (9 + 0 + 2 + 8 + 5 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9028543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155636 + ... + 155693.

It is an arithmetic number, because the mean of its divisors is an integer number (2334975).

Almost surely, 29028541 is an apocalyptic number.

It is an amenable number.

9028541 is a deficient number, since it is larger than the sum of its proper divisors (311359).

9028541 is a wasteful number, since it uses less digits than its factorization.

9028541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311358.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 9028541 is about 3004.7530680573. The cubic root of 9028541 is about 208.2280305522.

The spelling of 9028541 in words is "nine million, twenty-eight thousand, five hundred forty-one".

Divisors: 1 29 311329 9028541